Whether she was suffering that will only ever be known by by Serene and CBS I presume, I wouldn't put it past them to put a bit of spin out to explain away one of the biggest live tv howlers of recent years. If indeed, Serene does suffer from these migraines then it's a "berry hebby" business, you'd presume she would not have gotten in front of the camera if she was having an attack, or she might have just had a brainfart and a severe case of the derp.